Mainly Modernist Stamp Collections

Vintage Stamps by Delicious Industries - http://www.flickr.com/photos/31211093@N08/sets/72157624730505517/with/4948101...
Postage Stamp Collection by Karen Horton - http://www.flickr.com/photos/karenhorton/sets/72157613482977550/
Modern Dutch Architecture Stamps - http://www.designrelated.com/inspiration/view/Karen/entry/3816/modern-dutch-a...